Officials Probe How Spanish Nurse Caught Ebola

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An ambulance transporting a Spanish nurse believed to have contracted the Ebola virus from a 69-year-old Spanish priest, leaves Alcorcon Hospital in Madrid, Spain, Oct. 7, 2014.

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Medical personnel carry a Spanish nurse who is believed to have contracted the Ebola virus from a 69-year-old Spanish priest into the ambulance before they leave Alcorcon Hospital in Madrid, Spain, Oct. 7, 2014.

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Spainish Health Minister Ana Mato speaks during a meeting between authorities of the Health Ministry and the Madrid Regional Health Council in Madrid, Spain, Oct. 7, 2014.